Sewing-machine.



M. M. SGHENCK.

, SEWING MACHINE.

APPLIOATION FILED APB. 29,1910.

' 986,224.. Patented Mar. 7,1911.

Mar I'm M. Schenck,

MARTIN M. SCHENCK, OF BROWNVILLE, NEW YORK.

SEWING-MACHINE.

To all whom it may concern:

Be it known that I, MARTIN M. SOHENCK, a citizen of the United States ofAmerica, residing at Brownville, in the county of J efferson and Stateof New York, have in vented new and useful Improvements inSewing-Machines, of which the following is a specification.

This invention relates to sewing machines which. are used for sewingseams to connect long strips of heavy material such as carpet, canvasfor paper making machines and the like.

The invention has particular reference to sewing machines of the classreferred to which are mounted for movement upon suitable tracks or waysadjacent to which the material or fabric to be operated upon issupported, the machine traveling along as the work is being performed,and the invention has for its objects to simplify and improve theconstruction and operation of this class of devices.

With these and other ends in view which will readily appear as thenature of the invention is better understood, the same consists in theimproved construction and novel arrangement and combination of partswhich will be hereinafter fully described and particularly pointed outin the claim.

In the accompanying drawing has been illustrated a simple and preferredform of the invention, it being, however, understood that no limitationis necessarily made to the precise structural details therein exhibited,but that changes, alterations and modifications within the scope of theinvention may be resorted to when desired.

In the drawing,-Figure 1 is a top plan View of a portion of a tracksupporting a sewing machine in accordance with the invention. Fig. 2 isa transverse sectional view of the track showing the sewing machine inelevation and showing also in section the fabric or material that isbeing 0perated upon. Fig. 3 is a perspective detail view of the feedplate of the sewing machine.

Corresponding parts in the several figures are denoted by likecharacters of reference.

The track, which may be of any desired length, consists essentially oftwo planks or rails 1, 1 adjacent to one of which a guard rail 2 ismounted, said guard rail being of dimensions to project a suitabledistance above the track rail.

Specification of Letters Patent.

Application filed April 28, 1910.

Patented Mar. '2, 1911.

Serial No. 558,331.

The base B of the sewing machine C is equipped with wheels 3 which aresuitably supported for rotation, said wheels being adapted to travelupon the track rails 1, 1. The base is also provided with plates orbrackets 1 mounted upon the sides thereof by guide members 5 andfastening members, such as set screws (3 extending through slots 7 insaid plates or brackets, whereby the latter may be adjusted laterallywith reference to the guard rail 2. The plates or brackets 4 areprovided with bearings 8 wherein wheels or rollers 9 are supported forrotation, said wheels being disposed in a horizontal plane so as toengage one side wall of the guard rail 2. It is obvious that by properadjustment of the plates at, the base of the sewing machine may bespaced from the guard rail to such extent as may be desired, while thewheels 9 afford a bearing whereby the machine supported upon the basemay be correctly guided.

The sewing machine C which may be of any suitable Well knownconstruction and which may be operated manually by means of a hand wheelD includes the horizontal arm 10 which is connected with the base by ahandle member 11. The feed. plate 12, which does not appear in Figs. 1and 2, be ing located within the base, but which has been shown indetail in Fig. 3, is operated in the usual or in any suitable and wellknown manner, but said feed plate is provided in lieu of the ordinaryratchet face with upwardly extending sharp-pointed prongs or barbs 13adapted to positively engage the fabric 14 whichis to be operated upon,so that by the movement of the feed plate in the operation of sewing,the machine will be positively forced to travel longitudinally of thetrack at a speed commensurate with the speed at which it is beingoperated.

The material or fabric that is to be operated upon may be temporarilysecured upon the upper face of the guard rail 2 by means of tacks, asshown at 15, or in any convenient manner.

From the foregoing description, taken in connection with the drawinghereto anneared, the operation of this invention will be readilyunderstood.

The construction is extremely simple involving only the arrangement ofthe track and guard rails and an addition to an ordinary sewing machineof the handle member 11 and the wheel carrying plates, as well as thesupporting wheels 3, the structure of the machine being changed only bythe substitution for the ordinary form of feed plate of that shown inFig. 3 of the drawing. By this device long seams may be sewed in heavyfabrics in an extremely accurate and satisfactory manner and at smallexpense.

Having thus described the invention, what is claimed as new, is

A track including a supporting rail, and a guard rail arranged adjacentto and extending above the supporting rail, a sewing machine including awheel supported base traveling upon the track rail, wheel carryingplates secured adjustably upon the base, a horizontal arm, a handlemember connecting said arm with the base, and a feed plate havingupwardly extending sharp pointed spurs; said guard rail being adapted tosupport the material that is to be operated upon by the sewing machine.

In testimony whereof I afiix my signature in presence of two witnesses.

MARTIN M. SGHENCK.

lVitnesses MICHAEL HALEY, CHAS. GREENWOOD.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

